3.4.0

3.4.0

• #800 Add shell= option to ssh.process()
• #806 Add context.buffer_size for fine-tuning tube performance
  • Also adds buffer_fill_size= argument for all tubes
• b83a6c7 Fix undocumented process.leak function
• 546061e Modify coredump_filter of all spawned processes, so that core dumps are more complete
• #809 Add several functions to adb (unlink, mkdir, makedirs, isdir, exists)
• #817 Make disconnection detection more robust